Volume 8, Number 8—August 2002
Research
West Nile Virus Outbreak in Horses, Southern France, 2000: Results of a Serosurvey
Benoit Durand*
, Véronique Chevalier*, Régis Pouillot*, Jacques Labie*, Ingrid Marendat†, Bernadette Murgue†, Hervé Zeller†, and Stéphan Zientara*
, Véronique Chevalier*, Régis Pouillot*, Jacques Labie*, Ingrid Marendat†, Bernadette Murgue†, Hervé Zeller†, and Stéphan Zientara*
Table 3
Immunoglobulin G anti-West Nile virus individual-level prevalence in equines by group size, Camargue, France, 2000a
| Group size | Total | Positive (%) | Prevalence Ratio | 95% CI |
|---|---|---|---|---|
| 1–2 animals | 1,353 | 165 (12.2) | 2.2 | 1.6 to 3.0 |
| 3–6 animals | 1,118 | 114 (10.2) | 1.8 | 1.3 to 2.5 |
| 7–25 animals | 1,355 | 87 (6.4) | 1.1 | 0.8 to 1.5 |
| >25 animals | 1,281 | 55 (5.1) | Ref. | |
| Total | 5,107 | 432 (9.7) |
a Chi square = 54.11 (3 degrees of freedom), p<0.0001; 95% CI = 95% confidence intervals.
Page created: July 16, 2010
Page updated: July 16, 2010
Page reviewed: July 16, 2010
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.